Chemistry is traditionally divided into organic and inorganic chemistry. Recommanded Product: 3731-16-6. The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 3731-16-6
Electron impact (EI) and chemical ionization (CI) mass spectra of 5-methoxytryptamine (5-MT) and seven 6-methoxy-beta-carbolines have been recorded and interpreted.Proposed fragmentation pathways are depicted on the basis of spectra of deuterium labelled analogs of 5-MT, 6-methoxy-1,2,3,4-tetrahydro-beta-carboline (6-MeO-THBC) and 6-Methoxy-1-methyl-1,2,3,4-tetrahydro-beta-carboline (6-MeO-1-Me-THBC).In the EI mass spectrum of 5-MT, the base peak m/z 160 is formed by the expulsion of CH4N.The positive ion so formed is suggested to have a quinolinium structure.In chemical ionization with CH4 as the reaction gas, the most abundant ion is produced by cleavage of NH3.The ion m/z 173 yields the base peak in the EI mass spectrum of 6-MeO-THBC.This ion is formed by a retro Diels-Alder reaction, an important fragmentation pathway of 6-MeO-1-Me-THBC, too. 6-MeO-harmalan easily loses one hydrogen atom in EI fragmentation followed by methyl loss from the methoxy group, this latter process yielding the base peak, m/z 197 in the EI mass spectrum of 6-MeO-harman.M+1 is the base peak in the CI mass spectra of all 6-MeO-beta-carbolines.
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Reference：
Piperidine – Wikipedia,
Piperidine | C5H9853N – PubChem